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Northwest Africa 13067
Basic information Name: Northwest Africa 13067
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13067
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 70 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 509 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 31 Jan 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13067 (NWA 13067)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Eucrite)

History: The meteorite was purchased from a meteorite dealer in Morocco.

Physical characteristics: Greyish rock with some fusion crust.

Petrography: The meteorite is a fragmental breccia composed of up to 3 mm sized basaltic and sparse up to 2 mm sized black impact melt clasts set into a clastic matrix. Mineral phases are predominantly up to 300 µm sized pyroxene and up to 700 µm sized calcic plagioclase grains. Pyroxene is compositionally zoned indicating a low degree of thermal metamorphism. Minor phases include silica, chromite, and troilite. No metallic iron has been detected.

Geochemistry: low-Ca pyroxene: Fs37.5±7.9Wo7.6±1.2 (Fs31.7-53.1Wo6.4-9.6, FeO/MnO=24-29, n=15); Ca-pyroxene: Fs48.4±4.0Wo23.4±0.6 (Fs45.5-58.0Wo22.9-25.2, FeO/MnO=25-31, n=13); calcic plagioclase: An87.7±5.8 (An82.0-94.6, n=13)

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019
Mass (g):70
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):37.5; 48.4
Wollastonite (mol%):7.6; 23.4
Classifier:A. Greshake, MNB
Type spec mass (g):14.4
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7859 approved meteorites from (Northwest Africa) (plus 1961 unapproved names)

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